Paper feeding apparatus



No- 749,986. PATENTED JAN. '19, 1904.]

A. B. DICK.

PAPER FEEDING APPARATUS.

APPLIUATION FILED AUG. 21, 1903.

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1m MODEL.

THE NORRIS PETERS c0. PHOYGLITNO.WASHINGTDN. n. c.

PATENTED JAN. 19, 1904.

A. B. DICK. v PAPER FEEDING APPARATUS.

APPLICATION FILED AUG. 21, 1903.

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ATTORNEY WIT assas. WVENT No. 749,986. PATENTED JAN. 19, 1904.

A. B. DICK.

PAPER FEEDING APPARATUS.

APPLICATION FILED AUG. 21. 1903.

N0 MODEL. 3 SHEETS-SHEET 3.

Hill ARENA UNITED STATES Patented January 19, 1904.

PATENT OFFICE.

ALBERT B. DICK, OF CHICAGO, ILLINOIS, ASSIGNOR TO A. B. DICKCOM- PANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS. I

PAPER-FEEDING APPARATUS- SPECIFIGATION forming part of Letters Patent No. 749,986, dated January 19, 1904.

Application filed August 21, 1903.

To all whom it may concern:

Be it known that I, ALBERT B. DICK, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented a certain new and useful Improvement in Paper-Feeding Apparatus, of which the following is a specification.

The object of the present invention is to provide simple yet reliable apparatus for succes sively feeding sheets from a pile, and it is designed particularly for use in connection with printing or stencil duplicating machines, as set forth in application, Serial No. 167,901, filed in my name August 1, 1903.

In carrying out theinvention afeeding device is employed, preferably -in the form of two feed-rolls, to which movement, either continuous or intermittent, is imparted in any suitable manner. One of said feed-rolls coacts with the under side of a pile of sheets to feed the lowermost sheet forward over the other roll and thence to the printing or other mechanism. Obviously means must be provided for assuring the feeding of but a single sheet at a time. In the present instance such means consist of paper-stops located above the main feed-roll and movable relatively thereto into coaction with the paper pile, so as to restrain all of the sheets of such pile save the lowermost sheet from passing over the feed-roll. A'plurality of such paper-stops is preferably employed arranged in the general plane of the feed-roll, but difierentially operated, in order that the forward edge of the sheet to be fed may be passed squarely and in correct alinement through the machine. Said paper-stops are preferably operated by a connection with the single source of power from which all the parts of the sheet-feeding device are actuated. In a preferred form the paper-stops are given an oscillating movement toward and from the direction of travel of the paper sheets, such movement being imparted by suitable cams and levers. In another embodiment of the invention the same end is achieved by the use of paper-stopping shoes, also actuated by suitable cams and levers and movable, as in the form first referred to, toward and from the paper pile and in the di- Serial No. 170,276. (No model.)

rection of travel of the sheets thereof. These forms of paper-stops operate in the same manner-vl. 6-, to permit only the lowermost sheet of the pile to be fed through the machine, re-

straining the sheets lying above such lower most sheet until each in turn becomeslower cal section, and Fig- 6 an end view, illustrating a further modification.

Referring first to that form of the invention illustrated in Figs. 1 and 2, A designates a feed-roll, preferably having a rubbered pe-.

riphery and carried by a shaft a, mounted in the side members a a of the frame A. One

end of theshaft A projects through the side member a of the frame and is here provided with the driving-sprocket a the gear a, and the gear a the purpose whereof will be presently explained. B designates an auxiliary feed-roll, here shownas provided with afluted exterior and mounted on a shaft 6, one end whereof projects through-the side member (6 of the frame,where it is provided-with a gear I), meshing with an idler-gear, which in turn meshes with the gear a The movement im-' partedto the main feed-roll A in the present case is a continuous rotary movement, although a suitable stop device may be employed to give it intermittent movement, as clearly shown and explained in my former application'above referred to, and due to the coaction of the gears a and Z) the movement of the auxiliary feed-roll B will also in the present instance be continuous. C designates a feed-board upon which is laid the pile of sheets C, the forward end whereof rests upon the periphery of the auxiliary feed-roll B. D designates a crank-shaft mounted in the side members a a of the frame,-one end thereof projecting through the side member (0 where it is provided with a gear 0Z, meshing with a gear cl, which in turn meshes with and is driven by the main gear Intermediate of its ends the crankshaft D is provided with crank-disks d connected by crank-pin 0Z with which coact the upper slotted ends of paper-stop levers E, a series of which are mounted upon the shaft E, extending between and mounted in the side members a a of the frame. Each paper-stop F is here shown as provided with a shaft f, journaled in bearings f, formed on the downwardly-depending ends of a bracket G, here shown as loosely mounted, by means of sleeve g, upon the shaft D and prevented for rotating with said shaft by the shaft E, which passes through such bracket. Each of said brackets G forms a guide and support for a pair of said paper-stops F, and each paperstop F is provided with a pin f coacting with the lower slotted end of its actuatinglever E. The crank-pins (Z of each pair of paper-stops are oppositely arranged in order that upon the rotation of the crank-shaft D one of said paper-stops will be moved forward as the other is moved backward. Each of said paper-stops is here shown in the form of a block, which may, if desired, be of metal, those portions coacting withthe paper being suitably faced with rubber or other material. The forward lower edge of each of said blocks is curved, as shown in Fig. 1, in order to bevel the edge of the pile of sheets when said pile is forced against it. In Fig. 1 the pile of sheets is shown as slightly withdrawn from the block for clearness. The curvature of the forward edge of such pile, however, is that which is given to it by the curvature of the blocks or stops F,

In practice I preferably employ two pairs of paper-stops such as those above described, one pair on either side of the machine. Also, preferably, the distance-stops will move in unison and the intermediate stops will move in unison, the former moving forward as the latter are moved backward, this being determined entirely by the position of the crankpins d By this means the forward edge of the advancing sheet will be fed squarely to the machine and kept in alinement. For the purpose of varying the relativity of the paperstops F and the feed-roll Athe shaft E may, if desired, be made adjustable in a vertical plane. This may readily be accomplished by mounting the ends thereof in bearing-blocks carried by the inner faces of the side members a (1, of the frame and positioned by means of screws.

Referring now to Figs. 3 and 4, illustrating a construction but slightly different from that shown in Figs. 1 and 2, here the feed and auxiliary rolls may be the same as those above described, the main driving-gear H transmiting movement through the gear H to a gear it, carried by the end of the shaft ll, mounted in brackets 7L2, extending upwardly from the main frame of the apparatus. Mounted upon the shaft it is a series of cams 71 coacting with annuli it, carried by the ends of reciprocating bars it. The forward 'ends of said bars h are guided in a bearing-block I, extending from one end to the other of the apparatus and forward of which are arranged the paper-stops. These are shown in Figs. 3 and i as comprising blocks L, mounted in housings Z, secured to the arms it. Each of said paper-stop blocks L is provided with an adjusting-screw Z and jam-nut Z by means whereof the relativity of such blocks and the subjacent feed-roll may be varied. Here, as before, the paper-stops are arranged in pairs, and the cam movement is such as to make the distant-stops operate in unison and the intermediate stops in unison, the former moving forward as the latter are moved backward.

Referring now to Figs. 5 and 6, a further modification is shown herein, a cam movement very similar to that illustrated in Figs. 3 and 4. being employed and paper-stops M in the form of semicircular shoes substituted for the rectangular blocks F. The stops M (the operative portion of the periphery of each whereof is preferably faced with rubber) are mounted upon a shaft m, each being provided with a gear (or segmental gear) on, meshing with a segmental gear of, formed on the lower end of a lever N, pivoted upon the shaft N and its upper end connected with the crank-arm N Here, as in both of the cases previously referred to, the connections with the driving mechanism are such that the outside paper-stops will operate in unison and the intermediate paper-stops in unison, the former being moved forward (see position Fig. 5) while the latter are moved backward.

The operation of the various forms of paper-stopping apparatus above described is substantially the same, certainly so far as concerns the feeding of the sheets therethrough. The paper-stops, whether in the form of oscillating blocks or curved and pivoted shoes, coact with the forward edge of the pile to re: strain all the sheets save the lowermost sheet from passing through the machine. The lowermost sheet, fed forward by the auxiliary feed-roll and the main roll, is permitted to pass forward free of the pile before the next sheet above becomes the lowermost sheet and is in turn operated upon. The sheets as passed over the feed-roll may be delivered upon a bed 0 or, if desired, to another pair of rolls P Q, as illustrated in Figs. 5 and 6, the former being journaled in the side members of the frame, while the latter may take the form of gravity-rolls mounted upon arms loosely pivoted to the frame to permit said rolls to bear with their entire weight upon the pass ing sheet in order to assure best contact of the rubbered periphery of the roll P therewith.

Having now described my invention, what I claim as new therein, and desire to secure by Letters Patent, is as follows:

1. In sheet-feeding apparatus, the combination with a bed adapted to receive a pile of sheets, and a feed-roll coacting with the under side of said pile, of a paper-stop in juxtaposition thereto, and means for intermittently moving said paper-stop in a plane substantially coincident with the direction of travel of said sheets, substantially as set forth.

2. In sheet-feeding apparatus, the combination with a bed adapted to receive a pile of sheets, and a feed-roll coacting with the under side of said pile, of a series of paper-stops in juxtaposition thereto, and means for intermittently moving said paper-stops in a plane substantially coincident with the direction of travel of said sheets, substantially as set forth.

3. In sheet-feeding apparatus, the combination with a bed adapted to receive a pile of sheets, and a feed-roll coacting with the under side of said pile, of a series of paper-stops in juxtaposition thereto, and mechanism for intermittently moving certain of said stops in unison in a plane substantially coincident with the direction of travel of said sheets, substantially as set forth.

L. In sheet-feeding apparatus, the combination withafeed-roll, of a series of paper-stops, and means for moving certain of said stops in unison in one direction and certain others in unison in another direction, substantially as set forth.

5. In sheet-feeding apparatus, the combination with a feed-roll, of an auxiliary feed-roll coacting with the under side of the sheet pile, and a paper-stop intermittently coacting with the forward edge of said pile and means for operating the same in a plane substantially coincident with the direction of travel of the sheets, substantially as set forth.

6. In sheet-feeding apparatus, the combination with a feed-roll, of an auxiliary feed-roll coacting with the under side of the sheet pile, a series of paper-stops, and means coacting therewith for moving said stops, in a plane substantially coincident with the direction of travel of the sheets, into operative relation to the forward edge of said pile, substantially as set forth.

7 In sheet-feeding apparatus, the combination with a feed-roll, of an auxiliary feed-roll coacting with the under side of the sheet pile, a series of paper-stops, and means coacting therewith to move said stops intermittently, in a plane substantially coincident with the direction of travel of the sheets, into operainto operative relation to the forward edge of said pile, certain of said stops being simultaneously moved to inoperative position, substantially as set forth.

9. In sheet-feeding apparatus, the combination with a feed-roll and means for passing sheets over the same, of a paper-stop in juxtaposition to said feed-roll, and means for moving the same back and forth in a plane coincident with the direction of travel of said sheets, substantially as set forth.

10. In sheet-feeding apparatus, the combination with a feed-roll and means for passing sheets over the same, of an adjustable paperstop in juxtaposition to said feed-roll, and means for moving the same back and forth in a plane coincident with the direction of travel of said sheets, substantially as set forth.

11. In sheet-feeding apparatus, the combi, nation with a feed-roll and means for passing sheets over the same, of a series of adjustable paper-stops coacting with said sheets, and means for moving the same back and forth in a plane coincident with the direction of travel of said sheets, certain of said stops being moved in one direction while the others are moved in a contrary direction, substantially as set forth.

12. In sheet-feeding apparatus, the combination with a feed-roll and means for passing sheets over the same, of a paper-stop, and means, including crank mechanism, for intermittently moving said paper-stop, in a plane substantially coincident with the direction of travel of said sheets, to operative position, substantially as set forth.

13. In sheet-feeding apparatus, the combination with a feed-roll and means for passing sheets over the same, of a series of paperstops, and means, including crank mechanism, for intermittently moving said paperstops, in a plane substantially coincident with the direction of travel of said sheets, to operative position, substantially as set forth.

This specification signed and witnessed this 14th day of August, 1903.

ALBERT B. DICK.

Witnesses:

R. R. HARRINGTON, M. H. BURKART. 

